I had this same problem but my system is a linux system.
But, it would not even boot due to getting read errors on the hard drive. Seems it was getting DRDY errors when it tried to read the partition table when the OS scanned for drives when it booted, and was hanging because it couldn’t read the partition information.
What I finally did was to boot from a spinrite 6 CD, have it scan the drive. That reset some pending reallocation events and also allowed the system to boot normally from then on.
I did have to run a program called testdisk and rewrite the partition information to the drive, too. It scanned the drive, found the partitions, and then wrote the partition information back to the drive. It’'s on Hiren’s boot CD… Google it and download for free 
